Air conditioning apparatus



- p 1W5 A. s. FEINBERG Re. 22,675

AIR CONDITIONING APPARATUS Original Filed May 18, 1942 2 Sheets-Sheet 1 2 Sheefs-Sheet 2 81 Fil 1 lay 18, 1942 Z .4

Origin lr op/vrrs Reissued Sept. 25, 1945 UNI-TED STATES PATENT 22,675' I AIitooNDrrioNING ismsims Archie S. Feinberg; Dallas; 'I ex. .Original sofa-319,119,- dated May 11, 1943; Serial anr iliBfiili May. 18, 1942- pplication fo r issue May 10, 1945,- Serial-No. 592 939 9 Clainiis. Ti s v ntion rel t sto irw s i s and p lins appara us, mmonl known .t th art as air;conditioning,,apparatusand it refers particularly to certain; new and useful improvements on s h pnaratus; 4 t

Therr ns nw o e t ;,of the inventi n is provide certain. improvements on the, applicants machine as described inhispo-pending applica 011, S ial ,No.... 5;1' 1; inwhi h aplu a itv of evaporator .or fllter pads. are arranged ina hops-- ins t ipl ralitr o re t ve. an e w rebya in r ase. the ec e, area ,ereoi without the necessity of" correspondingly increasing the size o1'- .th.e abi etm ossin The present invention includes among its out:

standing objects the; -provisi on-,of means ,to effect distribution of moisture; over -a,. widenarea 10f, the filter pads than has been. found, possible with the means for a similar purpose set up in t'hema': hine descri ed 1 said; orp ndinaapp cation A still further objfipt 0f; the invention is to increase the effectiveness of the-spray disc by p ovi n a plur y ,o p ay h a s adap ed to impinge, water against {the rear Iacepf -the, so

at a variety of points, the purpose ,beingto nsure a m ar e oi wat upw r ly} n. th

direction of the distributing battles, tobe iritey cepted and carried thereby toward-and along the upper portions of the sidefi-lter pads. L Simultathe description proceeds, taken in connection an w y he p rc t ge otnr qu red sa urar n. of a s; is increa ed approximatel three-fold, thereby insuring effectiveness appreaching;thev maximunn;

Another object-of the-invention is to provide n. n apparat s. of the ind speci e ia ir f fi es n c se con su ty tq-thean nla y re ated pads so that they willireceive and uniformly; dis: r te-wa e a on the .iipp r; p tions th eof. n. u i h a tities: to thorou y at ate the s me. a d to zi s rerl omp t ectiveness of the water, the frames of the pads ;areso.fa'bricated asto allow the discharge edges ofth'e bailles to lieinwardly of the common surfacesof the pa r e l q Still an he ob ect-o theinv n io is apr vide, through the novel arrangement of battles, as described aspray device common to all of'the filter. pads, that isto, say, a single water, Spray which serves the pad assembly-,- ke,ep ingthem thoroughly saturated through the aid of; the

baffles. (V v m I Y t 9ih I-\Qh wt of the inv niion'i i q ode 8-, elr impoi y vdev ce onsi in of a .moto r, actuated disc ,ofsuch design and contruotion tha QhQQ:, R 11y.,-I0 fitedi, Wi isch r e s r a spf liqui ihd s t d'a ainst i s r i l g -1 .is lzsir ams reins. defl qtedlb cu ent thr u h th Retain iilthed r cti n A ble character stioinyiew M. U A, 151 1 PQJBOi'Sidfifilt P d ,w d W s r msedat slig t .anslesr lative to the path, 01 a air induced-into ,the machine ,wblowr Henoethe desired. inclination of the spray discharge istowardthe said pads;

with the ac o p nv nad awinss e e .t

Figure 1 is a perspective view of an ai r con; ditioning machine constructed according to'the present invention; o Y, d

FigureZ' is a plan view with the top removed andpo o s br k =aw m I .1 t r v Figure 3 is a side elevationalyiew of the spray disc, with the drive motor, pump-,; and pump motor shown fra mentarily.

Figure 4 is aside elevationalview chine in vertical-section. L

Figure 5 is. a fragmentary; perspective view; oi one ofthe side baiiles showing' the relationship therewith of the complementary sidebaflle.

Figure 6 is ,a rear-view of;- the spray, disc, illustrating generally by arrows the 'directiontake'n bythe water as it is thrown by, the disc, and 1 Figure '7' is; afragmentary; plan view ofthe disc and one of-the sprayheads, designed to show the angle of discharge in the direction of the axis of the disc.

Continuing with a more. detailed description of 1 the; drawings; reference isprimarily made to Figure 1 wherein lfl'denotes-the cabinet orhouse ing which is a rear view and isof more or less conventional design; Ordinarily, machinesflfor a similar purpose contain but a-single filter pad which is water saturated andthrough which air is drawn by a suitable blowerfan to cleanse and cool the same. The present invention, as well as that described in the co-pendingiapplication, provides a plurality of such pads disposed; at a plurality of anglesin the cabinet, the present showing of the pads difiering from that of the said application only in that two ads H are herein provided for and which are also, at relative angles, instead of a single rearlpad as previously described. The provision of two rear pads is not compulsory as is clearly apparent but inasmuch oi the I inaas it has been and will be hereinafter shown that the objects of the present improvement are to so control the spray of water that it will always tend to move forward; it is obvious that the inclination of the wallsof the rear pads II will promote this tendency. There are at least four factors which prominently serve in the allocation of the discharge of the spray disc I2. These are, first: the peculiar construction of the disc. Second: the divergent walls of the rearmost pads II which reduce the sharpness of the angle around which the water must be conveyed toward the side pads I3. Third: the triangular bafiles I4 which intercept the water thrown outwardly and upwardly by the disc I2 and convey the same for distribution along the upper portions of the side baffles I3, and fourth: the action of the air itself when induced by the blower fan I5 to enter the open rear of the machine, as indicated by the arrows, to be discharged through the opening I6 at the front of the cabinet. With all of these factors operating to insure maximum saturation of the pads, combined with the increased area. afforded by th multiple pad arrangement, a most efiicient and satisfactory air cooling apparatus is provided.

As a support for the pads, channel members I1 provide skids for the side pads I3 while the cross member I8 jointly supports the rear pads II. Both, the rear pads II and the sid pads I3 are independently removable for replacement, repair or cleaning, as the case may be.

Referring now to the spraying device, it is to be noted that the motor for rotating the disc I2 is mounted in the water-proof housing I3, sus-' pended by means of a bracket which is slidably received in channels 2| aflixed to the underside of the top of the cabinet I0. By referring to Figure 4, it will become at once apparent that the motor-housing bracket is mounted by sliding the same into the channels 2I. Other forms of mounting the motor and spray disc may, of course, be adopted.

The disc I2 is mounted on the motor armature shaft 22 to lie between the housing I9 and rear pads I I. A moisture shield 23 embraces the opening in th housing I9 through which't he shaft 22 passes to prohibit entrance of moisture likely to impair'the motor.

The disc I2 is so constructed as to provide a circular central elevation a. and a perimetrical flange b (Figures 6 and '7). To the rear of the disc is a system of spray heads mounted on a pipe 24, rising from the pump 25 in the basin 26 and provided with a strainer screen 21. A motor 28 operates the pump.

The spray heads are comprised of a crosshead 29 having a length of pipe 0 at one end (Figure 6) and'a shorter piped at the other, each being directed toward the rear face of the disc, as shown and slightly upward, Intermediate the heads c and d is yet a shorter head e. The purpose of these three heads is to insure a greater discharge of water from the disc I2 upwardly and at substantially right angles outwardly, toward the triangular baflie I4 on either side, which receive the major portion of the water thus discharged and convey the same forwardly along the outer faces of the side pads I3. The spray head 0 is located above the axis of the disc due to the fact that the discharge thereof has a shorter distance to travel on the disc than that of the heads at and e before it is propelled oil the edge thereof. on the disc as to insure suflicient supply of water The sprayhead d is so oriented for the rearmost pads II and its discharge is augmented by the smaller head 2 so that a sufficient quantity of water will break through any interference set up by the discharge of spray head 0 and reach the proper point on the disc for projection toward the baffle I3 at the right in Figure1.,.

In Figure '7 it will be noted that the shape of the elevated center a of the disc, as it merges into the flange b causes the film of water thereon under the action of the air currents through the apparatus to thrust forwardly in the direction desired, that is, at an angle toward the axis of the disc. In other words, the discharge of the disc is concaved in the direction of the pads. Referring again to the triangular baffles I4, Figure 5 shows the relationship of this baffle with one of the side pads I4. This baflle is required to be triangular in order to conform to the space between the pad and wall'of the cabinet Ill. The bafile has a flange j which is welded, bolted or otherwise secured to the inner wall of the cabinet. The baflles are very slightly inclined toward the rear of the cabinet so that the water collected by the extended ends of the battles will be conveyed toward the front of the cabinet. There has been some difiiculty in the past in properly distributing the water so that the side pads will be sufiiciently saturated. This difliculty is overcome by the baflies I3 and further, by so constructing the pads and their frames that a, channel 30 is formed from the front to the rear thereof to receive the discharge edges of the baffles, as shown. These discharge edges are provided with spaced triangular notches 3| so as to avoid the formation of a dam along this edge and to insure equal distribution of water overflow throughout the lengths 'of the baflles.

It is apparent from Figure 5 particularly that since the discharge edge of the baffle I3 extends inwardly of the common face of the pad, the water leaving the baffle will precipitate downward through the fibrous material of the pad instead of along the outer face and depending upon the suction of the fan for'pulling the in'oisture into the pad. Of course, good results are possible byplacing the discharge edges'of the baflies I3 against the faces of the pads with channeling the latter but superior results are found to be possible by, arranging the pads and battles in themanner shown.

The blower fan I5 is of conventional design, mounted upon the supporting frame 32 and driven through belts 33 by motor 34,' Figure'2.'

Manifestly, the construction as shown and described is capable of some'modification'and such modification as may be construed to'fall within the scope and meaning of the appended claims is also considered to be within the spirit and intent of the invention.

What is claimed is:

1. An evaporative cooler and humidifier including a cabinet having a rear air intake and a front air outlet, means to effect movement of air therethrough, an assembly of filter pads in said cabinet arranged at a variety of angles in the air stream, means disposed behind the rearmost pad assembly and above the midsectiorl thereof for discharging water radially, said water under infiuence of the air stream being diverted forwardly toward said padassembly into the rearmost pads are adapted to intercept and convey and distribute a portion of the discharge of said water discharging means onto said side pads.

2. An evaporative cooler and humidifier including a cabinet having a blower therein creating a draft therethrough, an assembly of filter pads disposed at a variety of relative angles in said cabinet and throughwhich air is constrained to pass, a substantially horizontal baffle in attendance to each side pad of the assembly, each having an edge in contiguous relation to the outer face thereof and means rearwardly of and common to all of the pads of the assembly for discharging water radially, said water under infiuenoe of the draft of air being diverted forwardly in the direction of said pad assembly, a portion of which discharge is intercepted, conveyed and distributed by said baflles along the upper portions of said side pads.

3. An evaporator and cooling unit including a cabinet, a fan and a filter pad assembly arranged therein to define an air space in said cabinet on either side and rearwardly of said assembly, a baffle conforming to the space on either side of said assembly in the upper portion thereof, the discharge edges of said baffles being in contiguous relation to the outer surfaces of the side pads of said assembly, a disc operatively disposed above the mid-section of the rearmost mats, means for impinging streams of water against the rear face of said disc to be thrown thereby radially outward, said water under influence of the draft of air being diverted forwardly towards said pad assembly whereby a portion thereof will be intercepted, conveyed and distributed by said baffles along the upper portions of said side pads.

4. An evaporative cooler and humidifier including a cabinet having a filter pad assembly therein, positioned to define an air space on either side and rearwardly of said assembly, a fan disposed inside of said assembly to constrain air to pass therethrough, a baffle conforming to the space intermediate the walls of said cabinet and the side bafiles of said assembly and whose inner edges are in contiguous relation to the outer surfaces of said side pads, and means common to all of the pads of said assembly for discharging water radially, said Water under influence of the draft of air being diverted forwardly to moisten the rearmost pads of said assembly and to propel water onto said battles to be conveyed thereby for distribution along the upper portions of said side mats.

5. Apparatus of the character described comprising a cabinet, a fan in said cabinet, a filter pad assembly arranged about said fan to define a space on either side and rearwardly of said'pad assembly and through which air is constrained to pass, a disc suspended for rotation above the mid-section of the rearmost pad of the assembly, means for rotating said disc, a pump, means for conveying water from said pump and discharging same against the rear face of said disc for radial dischargethereof, said water under influence of the draft of air being diverted forwardly to moisten the rearmost pads of the assembly, and means conforming to the space on either side of said pad assembly and in contiguous relation to the side pads thereof for intercepting a portion of the discharge of said disc and conveying the same for distribution along the upper portion of the side pads of said assembly.

6. An air cooling apparatus including a cabinet and a plurality of pervious mats therein, a centrifugal liquid spray device situated above the midsection of the foremast of said mats, the said mats being arranged at a series of relative angles to define forwardly divergent moisture receiving air chambers between the mat assembly and the side walls of said cabinet, and means in contiguous relation with each of the side mats of the assembly to collect and distribute a portion of the discharge of said spray device whereby said spray device will maintain moistened condition of said mats collectively.

'7. An evaporative cooler and humidifier including an air pervious filter whose effective area is divided into a central and a pair of side sections, all of which sections are on a vertical plane and disposed at different relative angles, a common means located above the midsection of said central section for maintaining moistened condition of said section means collecting portions of the discharge of said latter means for distribution along the surfaces of said side sections and means for constraining air to pass through said filter sections.

8. An evaporative cooler and humidifier including an air pervious filter in vertical sections whose side sections are divergent from the intermediate portion thereof to define effective side air chambers, means disposed above the center of the intermediate position of said filter for maintaining moistened condition of said filter, means collecting and depositing portions of the discharge of said moistening means on the surfaces of said side sections and means to effect forced movement of air through said filter which means is likewise effective to draw moisture into said chambers and to distribute moisture over the effective area of said filter.

9. An evaporative cooler and humidifier including a pervious filter having a central and relatively divergent side sections defining effective air chambers on the sides of said filter, means to effect forced movement of air through said filter, means disposed forwardly and above the middle of the central portion of said filter and in the current of air moving into said filter for producing a substantially circular spray of water and whereby a part of said spray will be influenced by said air current to enter the said air and moisture receiving chambers for passage through said filter and means alongside the side sections of said filter for receiving and distributing portions of the discharge of said spray means thereon.

ARCHIE S. FEINBERG. 

